"proprietary trade secrets"
Actually they consider them a liability as they are not always wired the same.
You would think they would be...but alas, as far as GS, they are not. Right down to colors changing.
But anyway, welcome to the site and the world of RVing. Suggesting looking to come to the Back to Home Rally next year. Also suggest to keep calling GS to see if you can get some of the docs. They may charge you for them, but do not expect the wiring diagram...just GENERAL operation.